Toothbrush



FIG. 1 is a front perspective view of a toothbrush according to the new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is an enlarged top view thereof;

FIG. 8 is an enlarged bottom view thereof;

FIG. 9 is an enlarged detail view of the portion of the toothbrush depicted in FIG. 1; and,

FIG. 10 is an enlarged detail view of the portion of the toothbrush depicted in FIG. 3.

The broken lines showing the rest of the cleaning elements, the head, and the handle illustrate portions of the toothbrush that form no part of the claimed design. 

CLAIM The ornamental design for a toothbrush, as shown and described. 